Fireproof blind or curtain



(No Model.) 2 Sheets-Sheet 1.

W. R. KINNEAR.

PIRBPRQOF BLIND 0R CURTAIN.

No. 602,602. PatentedApr. 19, 1898.

I I n I l l I I l I I l l l I 2 Sheets-Sheet 2.

(No Model.)

W. R. KINNEAR. PIREPROOF BLIND 0R UURTAIN.

No. 602,602. Patented Apr. 19,1898.

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Nrrno STATES TILLIAM R. KINNEAR,

OF COLUMBUS, OHIO.

FIREPROOF BLIND VOFI CURTAIN'.

SPECIFICATION forming part of Letters Patent No. 602,602, dated April19, 1898.

Application filed April 16, 1897.

To @ZZ whom, it r11/ay concern:

Be it known that 1, WILLIAM R. KINNEAR, a citizen of the United States,residing at Columbus, in the county of Franklin and State of Ohio, haveinvented certain new and useful Improvements in Fireproof Blinds orOurtains; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

Figure l is a front elevation of a window provided with my improvediireproof blinds. Fig. 2 is a vertical sectional view showing the blindapplied to the common form of window, the curtain being partly unrolled.Fig. 3 is a similar view showing the blind applied to a window speciallyadapted for the reception of my iireproof blind. Fig. 4 is a horizontalsectional view. Fig. 5 is a vertical sectional view, on a larger scale,showing the details of the curtain-moving devices, the structure beingbroken at the middle both vertically and horizontally. Fig. 6 is a sideelevation of what is shown at the right-ha-nd side of Fig. 5. Fig. 7 isa front view, on a larger scale, showing the upper part of thestructure. Fig. 8 is a horizontal sectional View through one of the sidepieces of the blind-frame, and Fig. 9 is a plan view of the device forsecuring a bolt to the side of the blind-frame- The object of myinvention is to provide a lireproof blind that may be made at thefactory complete and shipped to distant points ready to be put upwithout the aid of special y skilled labor.

Myinvention consists in the various details of construction hereinafterset forth and claimed.

In the several views of the drawings like characters of referencedesignate correspond ing parts.

1 1 designate the side parts of the frame, which consists of two longparallelly-arranged box-like structures or cases, of sheet metal, havingcovers 1fL for the inner open sides, removably secured thereto by screwslb, entering walls on the frames 3 and 1l, and longitudinal grooves 2 2for the inner and outer curtains, respectively.

At the upper ends of and riveted to the side parts 1 are the metallicplates or frames 3,

Serial No. 632,479. (No model.)

forming upward parallel extensions of the side parts 1, between which isjournaled the vupper curtain-roller 4, of any suitable construction.Projecting axially from the rollers, at each end thereof, are square ornon-round studs a Lib, upon which are fastened gear- Wheels 5 5, thatengage idler-gears 6 6,which in turn mesh with gears 7 7, fixed on shortshafts S S. The inner ends of these short shafts 8 8 extend into theboxes or hollow side parts l of the curtain-frame, where they arefurnished with small sprocket-wheels 9 9. The outer extremity of theright-hand stud 4b is provided with a comparatively large sprocketwheel10.

Provided at the lower ends of the parts or casings l are the metallicplates or frames 11, between which is journaled a spring-roller l2, thatis capable of having its tension regulated lby means of a ratchet 13 onthe shaft of the roller and pawl13a on the frame l1, very much after themanner of an ordinary curtain-roller. In my case, however, I provide thepawl with extends over the end of the shaft of the roller and insuresthe retention of the ratchet in place without the aid of other devices.

14 designates the upper roller curtain, which is preferably formed ofmetallic slats, as illustrated in my patent granted November 24, 1396,No. 572,014. This is attached suficient length to extend from the rollerto the window-sill. The free en d of the curtain is furnished along itshorizontal edge with a strip of angle-iron, the ends of which, together-with the vertical edges of the`curtain, fit and can be slid freely upand down in the outer groove 2a.

is preferably of the same kind and construction as that on the upperroller; but its angle-iron and edges fit and move in the inner groove 2,so that when the upper curtain is down and the lower curtain up apractically continuous air chamber or space is formed in front of thewindow that affords an eflicient barrier to the passage of heat orllames to the window-frames and glass.

The upper roller is inclosed and protected by a hood 14u. The lowerroller has arranged above it a hood or cover that consists so as to berolled up on the roller and is ofv 15 designates the lower rollercurtainthata parallelly-extenc'ling plate or guard 13b, that IOO of a curvedplate of sheet metal l5n and is pivoted in the sides of the frame-pieces1l, so that as the curtain 15 is wound and unwound the hood rises andfalls, and when the curtain is nearly or quite unwound the lower edgethereof rests against the sill, as indicated in Fig. 3, thus cutting 0Eany great inflow of air and eftectually preventing the admission offlames at that point.

Attached to the free end of the lower curtain or to the angle iron 9bthereof are sprocket-chains 9 9, that pass up over the inner sides ofthe sprocket-wheels 9 9, and their free en ds hang down at the oppositeside in the box or hollow frames l l at the side of the window.

Journaled in a suitable bracket I7 at the inner side of the building isa double sprocketwheel I8, over one part of which and the sprocket iOruns a chain belt, While over the other part of said Wheel 1S runs abelt or chain by means of which the upper roller may be manually rotatedin either direction. Vhen the upper roller is rotated, motion in thesame direction is communicated through the gears 5, 6, and '7 to boththe sprocketwheels 9, which should be so proportioned that a fullunrolling or rolling of the curtain is simultaneously effected.

An important feature of my present irnprovement resides in the means foradjusting my fireproof blinds to disproportioned window-openings orwindow-openings the sides of which through the settling of the buildinghave gotten out of plumb. To accomplish this, I place along the frontcorners of the outer sides of the boxes or casings l angle-plates 20,that are made laterally adjustable. One means of making theseangleplates adjustable consists in securing bolts 2l by means of smallplates 22, formed to hold the saine riveted tothe outer sides of theboxes or casings. The ends of these bolts,'which project beyond theouter faces of the boxes or casings l, extend through substantiallyhorizontal slots 20 in the angle-plates 20, so that the latter may belaterally adjusted to lit tightly against the walls of thewindow-opening and then iixed in position by means of nuts turned up onthe ends of the bolts.

From the construction shown and described it will be plain that theentire blind may be made at the factory and, if desired, put togetherready for adjustment to a window, that no special skill is required tofit and secure the blind in place, and, further, that when the blind isin place and closed a complete surface of metal backed by a sheet orcolumn of air is afforded to prevent the access of iiames and heat tothe woodwork of the window-frames- These blinds therefore will bespecially serviceable to prevent the communication of iire from or tonear buildings.

I do not wish to be understood as limiting myself to the exact form andproportion of parts illustrated in the drawings, as they may be variedwithout departing from the scope of my invention.

What I claim, and desire to secure by Letters Patent, is-

l. In a ireproof blind or shutter, a frame comprising hollow sidecasings l l having channels or guides for curtains, frames or extensions3 3 secured to the upper ends of the casings, the curtain and roller etjournaled in said extensions, gear-wheel 5 on the roller, idler-gear 6meshing with gear sprockets 9 9 within the casings, the gear 7 on theshaft of sprocket 9 and meshing with gear 6, the frames or extensions llll secured to the lower ends of the casings, the curtain and roller l2journaled in said frames or extensions ll ll, and chains connected withthe lower curtain and passing over sprockets 9 9, substantially as shownand described.

2. In a fireproof blind or shutter, a frame comprising hollow sidecasings having channels or guides for curtains, rollers containing saidcurtains journaled in the upper and lower parts of said frame, the lowercurtain being spring-actuated to roll said curtain thereupon, sprocketsin said hollow sides or casings, chains connecting the lower curtain andsaid sprockets, and gearing for communicating motion of the uppercurtains to the lower, substantially as described.

3. Inafireproof blind or curtain of the kind referred to, a roller andcurtain thereon, combined with a hood or cover arranged to rise and fallwith the rolling and unrolling of the curtain, substantially asdescribed.

4. Atireproof blind or shutter comprising a frame with plates adjustableon said frame for fitting said shutter in a window.

In a fireproof blind or curtain, a frame including side casings forsupporting the blind or curtain, bolts secured to the sides of saidcasin gs, substantially as described, and plates adjustable on saidbolts soA as to make the structure fit in the window-opening.

WILLIAM R. KINNEAR.

IVitnesses:

C. E. TURNER, J. M.' PATTERSON.

ICO

